Should "yet" be removed from this sentence?

And, though the gleams blind and dazzle, yet do they convey a hint of beauty and serenity greater than we have known or imagined.



I have two questions about the above sentence:

1. Is "dazzle" here an adj. or a noun?

2. Is "yet" a meaning repetition of "though", how about omit "yet"?

(The context is as follows:

A young man sees a sunset and, unable to understand or to express the emotion
that it rouses in him, concludes that it must be the gateway to a world that lies
beyond. It is difficult for any of us in moments of intense aesthetic experience to
resist the suggestion that we are catching a glimpse of a light that shines down
to us from a different realm of existence, different and, because the experience is
intensely moving, in some way higher. And, though the gleams blind and dazzle,
yet do they convey a hint of beauty and serenity greater than we have known or
imagined. Greater too than we can describe, for language, which was invented
to convey the meanings of this world, cannot readily be fitted to the uses of
another.

____NCE 4 Lesson 24)

Thank you for your attention.